Home / 482,928.40-724,392.60-479,429.20

Finding the Fourth Proportional to 482,928.40, 724,392.60 and 479,429.20

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Solution

The fourth proportional to 482,928.40, 724,392.60 and 479,429.20 is: 719,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,928.40 : 724,392.60 = 479,429.20 : x
  2. Step 2: Convert to fraction form
    482,928.40/724,392.60 = 479,429.20/x
  3. Step 3: Cross multiply
    482,928.40x = 724,392.60 × 479,429.20
  4. Step 4: Simplify right side
    482,928.40x = 347,294,964,703.92
  5. Step 5: Solve for x
    x = 347,294,964,703.92/482,928.40
  6. Step 6: Final answer
    x = 719,143.80

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.